The great formula to know boy or girl
If we think it carefully, the Calendar boy or girl chart may not exactly accurate. It should be produced according to the statistics from lots of mothers.
If it works perfect, back to that era of patriarchal in China, why there are still so many daughters in palace, it supposed to only have boys, right? so the table only should be used as a references, not a criterion.
Except the Chinese Calendar boy or girl chart, there is another very popular algorithm formula to know boy or girl.
the formula is “49 + lunar month of pregnancy –age of lunar year +19)*% 9=?”,If your result remainder is odd, it is a boy. If the result remainder is even, then it is a girl. For example, if the result remainder is 5.3333, it’s odd, you suppose to have a boy.
This formula is the calculation method produced from the folk, not regarded as high level as Calendar boy or girl.
Just compare the two methods, maybe you’ll get more satisfactory answer.